US Open 2015: Flavia Pennetta beats Roberta Vinci to win women's singles final - as it happened | US Open 2015 | The Guardian
Chart: Federer-Nadal: A Rivalry for the Ages | Statista
Most Tennis Grand Slam Title Winners
Australian Open 2015 Women's Singles Final Highlights: Serena Williams Overcomes Maria Sharapova | Tennis News
There Are Officially Zero Men's Grand Slam Winners In Their 20s | FiveThirtyEight
Wimbledon 2015 | Serena's GREATEST Grand Slam Triumph - YouTube
Serena Takes First Step Toward Grand Slam With Rout of Injured Russian | Zagsblog
Grand slam titles | thecuriousastronomer
U.S. Open 2015: Rafael Nadal exits Flushing Meadows after humbling defeat | CNN
Roberta Vinci Ends Serena Williams's Grand Slam Bid at U.S. Open - The New York Times
List of Grand Slam men's singles champions - Wikipedia
Federer, Nadal, Djokovic: Road from the 1st to the 20th Grand Slam Title
The Big Three of Tennis Men Singles - Unique Dominance? - flyctory.com
Serena Williams Wins Australian Open With Coughs, Guts and Aces - The New York Times
WIMBLEDON 2015: Serena Williams halfway to true Grand Slam
Serena Williams' grand slam dream ended by Roberta Vinci's shock win | Serena Williams | The Guardian
Serena Williams Wins Wimbledon 2015 Championship, Making her the Oldest Female Grand Slam Winner - Los Angeles Sentinel | Los Angeles Sentinel | Black News
Chart: The Youngest Grand Slam Champions | Statista
Novak Djokovic Wins the 2015 US Open Championship | Vogue
Federer, Nadal and Djokovic's race to 20 Grand Slam titles | Reuters
2015 Serena Williams tennis season - Wikipedia
Sania Mirza creates history with Martina Hingis, becomes India's first women's doubles Grand Slam winner | Sports News,The Indian Express
Past Tennis Grand Slam Winners: See Photos of Them All | Time
Who will win the race for most Men's Grand Slam titles? | Tennis News - Times of India
Serena Williams wins 19th Grand Slam tennis title - The Columbian
Wimbledon 2015: Serena Williams Defeats Garbiñe Muguruza and Closes In on Grand Slam - The New York Times
